براغي M10-1.5 × 55mm ذات غطاء مقبس | رأس مسطح محرك مقبس سداسي | ملولبة جزئيًا | فولاذ سبيكة فئة 10.9 معالجة بأكسيد أسود حراري (100/عبوة)

Mounted some tooling fixtures with these and the partial threading made alignment far easier than expected. The black oxide finish seems durable and hasn't chipped during install.

I needed a batch of 55mm M10 screws for a jig I’m building, and these came with a nice, consistent thread right up to the unthreaded shoulder. The hex socket drive fits my wrench snugly, and the black oxide finish gives them a clean, industrial look without any residue.

The black oxide finish on these screws looks sharp and holds up well in my jigs without any rust spots so far. That partially threaded design made aligning the fixture plates a lot easier than dealing with full threads.